( 1 ) Dehydration and de-dosing operations, generally using traditional center and peripheral transmission concentrators. When the handling capacity is not large, the center transmission type should be preferred. The main advantage is that it can be manually or automatically lifted to prevent crushing accidents. When the processing capacity is large, the peripheral transmission type is adopted, and the material density is small, and the roller type can be preferentially considered. On the contrary, the rack type can be selected, and the rack type can also prevent slipping. (2) gold cyanide plant (wet or smelter) and the precipitate was washed operations, generally multi-layer concentrator. ( 3 ) When the concentrator is installed indoors in a narrow and cold area, a high-efficiency thickener can be used. However, due to the use of flocculants and the impact on the next process, reliable test data must be used. ( 4 ) Concentrator feed size, generally less than 250μm . If the feedstock particle size cannot be reduced for any reason, it should be considered that the slurry is first treated by mechanical classification, centrifuge or cyclone, and the coarse particles are separated and then fed into the thickener. ( 5 ) The production capacity of the concentrator or the required sedimentation area shall be determined according to the material settlement test, or may be selected according to the production quota of similar enterprises. After determining the specifications of the concentrator, it should be checked according to the rising water flow, generally less than the free settling velocity of the particles of 5 μm . (6) inclined plate box was concentrated, it is used for small jobs concentrated ore dressing plants, and wastewater treatment operations. Elastic EVA foam strip,Aging resistant EVA foam strip,Extruded EVA foam strip HEBEI JIEXING RUBBER SEALS CO.,LTD , https://www.jiexingrubber.com
Concentration equipment selection principle
According to the process requirements, material properties and conditions of use, through the comparison of the program to determine the type and specifications of the equipment , generally should consider the following principles:
The classification of EVA foam strips is mainly based on the following aspects:
Foam grade: The foam grade of EVA foam strips can be divided into C grade, B grade, A grade, 3A grade, CR material, high elasticity EVA material, rubberized EVA material, etc. These grades reflect the physical properties and uses of materials, such as materials from grade C to 3A, which are typically used for tool boxes, packaging box liners, and environmentally friendly toy craft products.
Function: According to its function, EVA foam strips can be divided into high elasticity, anti-static, fireproof, shockproof, moisture-proof and other types. These classifications are based on the specific application requirements of the material, such as high elasticity EVA foam strips suitable for situations that require impact absorption or shock absorption, while anti-static and fire-resistant EVA foam strips are suitable for environments that are sensitive to static electricity or have high fire-resistant requirements.
Color: The color classification of EVA foam strips includes black, white, colored, camouflage, etc. These color classifications are mainly based on visual aesthetics and specific application needs, such as black and white commonly used for industrial and commercial applications, while color and camouflage may be used for occasions that require specific visual identification.
Density: According to density, EVA foam strips can be classified into 15 degrees, 20 degrees, 25 degrees, 30 degrees, 38 degrees, 45 degrees, 50 degrees, 60 degrees, etc. These density levels reflect the hardness and usage scenarios of the material, for example, lower density EVA foam strips may be used in situations that require greater elasticity and flexibility, while higher density materials may be used in situations that require stronger support or wear resistance.
Processing methods: The processing methods of EVA foam strips include sheet, roll, coating, backing, molding, embossing, etc. The choice of these processing methods depends on the specific shape and functional requirements of the final product. For example, sheet and roll materials are suitable for large-area coverage or simple molding, while adhesive coating and backing are suitable for products that require specific adhesion properties.
Product Name: Depending on the specific application scenario and product form, EVA foam strips can be referred to as rubber pads, foot pads, foam, inner liners, liners, shaped EVA, etc. These product names reflect the specific purpose and form of the product, which helps users choose the appropriate product according to their specific needs.
In summary, the classification of EVA foam strips covers multiple aspects such as foam grade, function, color, density, processing method, and product name. These classifications provide users with a wide range of choices to meet the needs of different application scenarios.